Why are paleontologists comparing this dinosaur fossil to Cinderella?

Everyone knows that the footprints of prehistoric creatures are rare, and that their fossilized remains are even rarer. But finding footprints and fossils together is almost never heard of, which is what has paleontologists so worked up about the fossilized Protoceratops pictured here. Outlined by a white box is a… »8/05/11 5:40pm8/05/11 5:40pm